$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma.git /var/lib/mock/f41-build-815845-149783/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma
Cloning into '/var/lib/mock/f41-build-815845-149783/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Lzma'...
$ git fetch origin e834ff5d23f93bcff9e8336cd73a8e4e593574b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-Raw-Lzma
 * [new ref]         e834ff5d23f93bcff9e8336cd73a8e4e593574b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e834ff5 Perl 5.40 rebuild